James Chaishin Chen, DDS
NPI 1588864417ActiveIndividual· Dentist· Stockton, CA
Dentist (DDS) in Stockton, California, licensed in CA, with an NPI issued in July 2007. Part D covered 380 prescriptions written in 2024, 98% of them generic. Envista Holdings Corporation was the largest of 2 companies reporting payments in 2025, $71.21 in all, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1588864417 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | Yes |
| NPI issued | Jul 19, 2007 |
| Last updated in NPPES | Mar 11, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 55767 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | James Shan Chen · Pharmacy | 1128a3 | May 20, 2021 | Herlong, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 380 · 380 30-day fills |
|---|---|
| Patients | 179 |
| Total drug cost | $1,952 |
| Generic share | 98% of claims |
Industry payments (Open Payments)
- 2025$71.21 · 2 payments from 2 companies
- 2024$500.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Envista Holdings Corporation | $44.84 | 1 |
| Kulzer, LLC | $26.37 | 1 |
What the 2025 payments were for
- Food and Beverage$71.21 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other dentists in Stockton
- 1083362479
- 1174723621
- 1205164530
- 1245461474
- 1255409421
- 1285180232
- 1336551720
- 1346981354
- 1366968331
- 1427377050
- 1467574400
- 1477649689